Synthesis and Characterization of Novel Perylenediimide-Cored Dendrimer with Fluorinated Shell

Abstract

A perylenediimide-based dendrimer, PDI-F, was designed and synthesized for application as red host emitter in nondoped organic light-emitting diodes. PDI-F was designed with perylenediimide as the luminescence core and pentafluorophenyl rings as the surface groups. The dendrimer molecule constructed in this way is bulky and nonplanar. PDI-F exhibits good solubility in common organic solvents and is suitable for wet methods such as spin coating to make thin films. All new compounds of the intermediates and the target dendrimer were characterized by ¹H NMR, ¹³C NMR, mass spectrometry, and elemental analysis. In addition, the ultraviolet (UV) absorption and fluorescence (FL) of PDI-F were measured and discussed. To the best of our knowledge, this is the first report of dendrimer PDI-F.

Keywords:

• Dendrimer
• fluorinated shell
• perylenediimide

ACKNOWLEDGMENTS

We gratefully acknowledge the National Natural Science Foundation of China (Project Nos. 20704002, 20602004, and U0634003), the Program for Changjiang Scholars and Innovation Research Team in University (IRT0711), and the NKBRSF (2009CB220009) for financial support of this work.